Bobbin.



S. W. WARDWELL.

1101213111. APPLICATION FILED DEC. 23, 1908.

989,886, f Patented Apr. 18, 1911.

s'rA ENT SIMON wAnnwELL, on zenovmnnon, nnopn ISLAND.

Specification of Letters Patent. Patented Apr. 18, 1911.

Application filed December 23, 1908. Serial No. 468,982.

To all whom it may concern:

Be it known that I, SIMON W. WARDWELL, a citizen of the United States, residing at Providence, in the county of Providence and State of Rhode Island, have invented new and useful Improvements in Bobbins, of which the following is a specification.

My invention is an improved bobbin, particularly devised for use in dyeing, bleacl1-. ing and kindred processes.

The purpose of my invention is to produce a tube of thin material, so constituted as to provide adequate support for the yarn and sufficiently staunchto sustain without damage the repeated handling to which it must be subjected. The means by which this is accomplished is fully disclosed in the following specification and accompanying drawings which represent respectively Figure 1, a plan of my improved bobbin, but shown without perforations in behalf of clearness. Fig. 2, an elevation in part section on the line ar-a of Fig. 1, showing perforations in the staves. Fig. 3, a modified form offerrule and mode of securing same.

The construction hereinafterdisclosed applies particularly to the form known as the bottle bobbin, the same being cdmposed of two portions, a frusto-conical base and a stem, the latter usually tapered but of a slight degree.

My improved bobbinconsists of a plurality of staves or segments 22-2 each extending the full length of the bobbin and including both a. portion of the base and a portion of the stem, and therefore being formed with two degrees of taper, or inclination to the axis of the'bobbin. There are preferably three of these staves, but the number is dependent on the size and proportion of the bobbin. The staves are bound together at the bottom and locked against longitudinal displacement by the ferrule 3 which, fitting within the ends of the staves, extends beneath and about said ends and is spun or otherwise formed tightly down upon their outer surfaces. The upper ends of the staves are similarly secured together by the ferrule 4 which extends within the bobbin and is formed down upon the outer surface. At the waist 5, distortion may be prevented by the hoop 6, though this is not always imperative, especially when the material of the staves is of substantial thickness.

When the bobbins are intended for use in dyeing, bleaching or other fluid treatments, the material of the staves is usually metal, with perforations for passage of the fluid.

Fig. 3 shows a modified ferrule construction in which the. ferrule is formed with ears or lugs 8 which register with suitable openings ,9 in the staves 2. In assembling the component elements of the bobbin, the staves are first engaged with'the lugs8 as aforesaid, and then the outer flange 10 of the ferrule is spun or otherwise formed down upon the staves as beforedescribed.

The advantage of my improved construction is apparent when it is understood that bobbins for the purpose described are some twelve inches in height by five or six inches diameter at the base. bobbin in one piece would be costly beyond possibility of commercial use.

Therefore, without limiting myself to the precise form of bobbin or arrangement or character of its components I claim:

1. A compound frustoconical bobbin composed of a plurality of staves, each stave formed with two diflerent degrees of taper,

the staves being bound together at the bottom and locked against longitudinal dis- To produce such a placement by aferrule which extends beis formed down upon the outer surface thereof, and secured together at the top by a ferrule Which'extends Within the staves and extends beneath and about the ends of the 10 is formed down upon their outside as destaves, and is formed down upon the outer scribed. a surfaces thereof. Y

3. A compound frusto-conical bobbin In testimony whereof I aflix my signa- 5 composed. of a plurality of perforated staves, ture in presence of two witnesses.

each stave formed with two different de- SIMON.W. WARDWELL. grees of taper, the staves being bound'to- Witnesses: gether at the bottom and locked against lon- DANIEL MGNIVEN,

gitudinal displacement by a ferrule which GRACE W. BROWN. 

